Showing 41 - 60 results of 108 for search '"cognitive radio networks"', query time: 0.10s Refine Results
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    Joint Subchannel Pairing and Power Control for Cognitive Radio Networks with Amplify-and-Forward Relaying by Yanyan Shen, Shuqiang Wang, Zhiming Wei

    Published 2014-01-01
    “…Dynamic spectrum sharing has drawn intensive attention in cognitive radio networks. The secondary users are allowed to use the available spectrum to transmit data if the interference to the primary users is maintained at a low level. …”
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    The User Requirement Based Competitive Price Model for Spectrum Sharing in Cognitive Radio Networks by Fang Ye, Yibing Li, Rui Yang, Zhiguo Sun

    Published 2013-11-01
    “…We analyze the competitive price game model for spectrum sharing in cognitive radio networks with multiple primary users and secondary users and propose a user requirement based competitive price game model for the calculation of the shared spectrum size of cognitive user in Bertrand game. …”
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    Improved cooperative spectrum sensing scheme based on dempster-shafer theory in cognitive radio network by Mei-ting YU, Lin-jing ZHAO, Zhao LI

    Published 2014-03-01
    “…An improved cooperative spectrum sensing scheme based on dempster-shafer evidence theory in cognitive radio networks was proposed.In the local sensing period,the projection approximation algorithm was introduced to reduce bandwidth for cooperation.In the fusion period,credibility was calculated by the distance between evidence vectors of different secondary users and adopted as the weights to combine different local sensing data.The new scheme reduces channel bandwidth and simulation results show that the new scheme improves the performance under the condition of high level conflict.…”
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    Cooperative Communication in Cognitive Radio Networks under Asymmetric Information: A Contract-Theory Based Approach by Nan Zhao, Minghu Wu, Wei Xiong, Cong Liu

    Published 2015-10-01
    “…This paper establishes a valuable cooperative communication mechanism in cognitive radio networks.…”
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